======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '400'
                                          'artist'  'Martin Waslewski'
                                     'text_people'  ''
                                         'release'  'Beatport: Must Hear August 2016 (Deep House)'
                                           'title'  'Clouds (Purple Disco Machine Remix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['tech-house', 'techno', 'electronica', 'downtempo', 'deep house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '121.50'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Beatport: Must Hear August 2016 (Deep House)'
'TBPM' (BPM (beats per minute))                     '121.50'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Clouds (Purple Disco Machine Remix)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Martin Waslewski'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['tech-house', 'techno', 'electronica', 'downtempo', 'deep house']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.95 dB'
'TXXX:replaygain_track_peak'                        '0.386822'

========================== row from database ==========================
                                              'id'  1314279
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Martin Waslewski - Clouds (Purple Disco Machine Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  400
                                           'genre'  electronic-unsorted
                                        'filesize'  16067164
                                           'mtime'  1620571086
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 electronic unsorted
                                      'tag_artist'  Martin Waslewski
                                     'tag_release'  Beatport: Must Hear August 2016 (Deep House)
                                       'tag_title'  Clouds (Purple Disco Machine Remix)
                                             'bpm'  121.5
                                    'search_title'  'clouds':1 'disco':4 'machine':5 'purple':2,3 'remix':6,7
                                   'search_artist'  'martin':1 'waslewski':2
                                  'search_release'  '2016':6 'august':5 'beatport':1,2 'deep':7,8 'hear':4 'house':9,10 'must':3
                                     'search_rest'  '00poprockelectronic':1 '2015':4 'electronic':5 'guy':3 'marvin':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':20 '2015':23 '2016':15C 'august':14C 'beatport':10C,11C 'clouds':1A 'deep':16C,17C 'disco':4A 'electronic':24 'guy':22 'hear':13C 'house':18C,19C 'machine':5A 'martin':8B 'marvin':21 'must':12C 'purple':2A,3A 'remix':6A,7A 'unsorted':25 'waslewski':9B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['tech-house', 'techno', 'electronica', 'downtempo', 'deep house']
                                        'tag_date'  2016
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620571086.1239955  (2021-05-09 16:38:06)
                             'size'  16067164